Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna Applications
The conventional ultra-high-speed motor (UHSM) has been mostly developed for light load (or low power) applications (e.g., ~100W, 500 kr/min). However, the new mechanical antenna system requires a high-power UHSM. Accordingly, the conventional design approach of low-power UHSM cannot address the new...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9910169/ |
| _version_ | 1811241545881354240 |
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| author | Md Khurshedul Islam Kazi Nishat Tasnim Seungdeog Choi Sangshin Kwak Akm Arafat |
| author_facet | Md Khurshedul Islam Kazi Nishat Tasnim Seungdeog Choi Sangshin Kwak Akm Arafat |
| author_sort | Md Khurshedul Islam |
| collection | DOAJ |
| description | The conventional ultra-high-speed motor (UHSM) has been mostly developed for light load (or low power) applications (e.g., ~100W, 500 kr/min). However, the new mechanical antenna system requires a high-power UHSM. Accordingly, the conventional design approach of low-power UHSM cannot address the new challenges, especially with high-power design. The new challenges include lowered critical bending resonance (CBR) due to higher rotor aspect ratio (<inline-formula> <tex-math notation="LaTeX">$L/D$ </tex-math></inline-formula>), ineffective electrical loading in the slotless stator due to commonly used three-phase winding, and significant temperature variation unusually in the axial direction and its mutual impact on the electromagnetic and mechanical performances. To address these new challenges, this paper proposes a quasi-3D thermal model to estimate critical temperature variations, a Rotordynamic model to limit CBR frequencies above the rated speed, and an electromagnetic model with multiphase winding to increase electrical loading in the slotless stator effectively. These models are systematically integrated to develop a unique Multiphysics multi-objective optimization (MMO) method, which enables (i) the mutual influence analysis among Multiphysics performances, such as thermo-electrical and thermo-physical that are critical in HP-UHSM, and (ii) a precise trade-off analysis between the efficiency and design safety margin (DSM). To validate the effectiveness of the proposed new MMO method, a 2-kW 500 kr/min UHSM, the highest power rated motor at this speed to the best of author’s knowledge, is designed for a mechanical antenna system and experimentally validated. It provides 94.5% efficiency with 30% DSM at 500 kr/min and no CBR below 11 kHz. |
| first_indexed | 2024-04-12T13:36:40Z |
| format | Article |
| id | doaj.art-b14b85c8307f40b4830b4388c25c19e3 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-12T13:36:40Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-b14b85c8307f40b4830b4388c25c19e32022-12-22T03:30:58ZengIEEEIEEE Access2169-35362022-01-011010630510632310.1109/ACCESS.2022.32119489910169Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna ApplicationsMd Khurshedul Islam0https://orcid.org/0000-0002-9095-8102Kazi Nishat Tasnim1https://orcid.org/0000-0002-4334-4191Seungdeog Choi2Sangshin Kwak3https://orcid.org/0000-0002-2890-906XAkm Arafat4Department of Electrical and Computer Engineering, Mississippi State University, Starkville, MS, USADrive System Design Inc., armington Hills, MI, USADepartment of Electrical and Computer Engineering, Mississippi State University, Starkville, MS, USASchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaDrive System Design Inc., armington Hills, MI, USAThe conventional ultra-high-speed motor (UHSM) has been mostly developed for light load (or low power) applications (e.g., ~100W, 500 kr/min). However, the new mechanical antenna system requires a high-power UHSM. Accordingly, the conventional design approach of low-power UHSM cannot address the new challenges, especially with high-power design. The new challenges include lowered critical bending resonance (CBR) due to higher rotor aspect ratio (<inline-formula> <tex-math notation="LaTeX">$L/D$ </tex-math></inline-formula>), ineffective electrical loading in the slotless stator due to commonly used three-phase winding, and significant temperature variation unusually in the axial direction and its mutual impact on the electromagnetic and mechanical performances. To address these new challenges, this paper proposes a quasi-3D thermal model to estimate critical temperature variations, a Rotordynamic model to limit CBR frequencies above the rated speed, and an electromagnetic model with multiphase winding to increase electrical loading in the slotless stator effectively. These models are systematically integrated to develop a unique Multiphysics multi-objective optimization (MMO) method, which enables (i) the mutual influence analysis among Multiphysics performances, such as thermo-electrical and thermo-physical that are critical in HP-UHSM, and (ii) a precise trade-off analysis between the efficiency and design safety margin (DSM). To validate the effectiveness of the proposed new MMO method, a 2-kW 500 kr/min UHSM, the highest power rated motor at this speed to the best of author’s knowledge, is designed for a mechanical antenna system and experimentally validated. It provides 94.5% efficiency with 30% DSM at 500 kr/min and no CBR below 11 kHz.https://ieeexplore.ieee.org/document/9910169/Multiphysics analysismulti-objective optimizationpermanent magnet motorsix-phase motorsafety marginultra-high-speed motor |
| spellingShingle | Md Khurshedul Islam Kazi Nishat Tasnim Seungdeog Choi Sangshin Kwak Akm Arafat Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna Applications IEEE Access Multiphysics analysis multi-objective optimization permanent magnet motor six-phase motor safety margin ultra-high-speed motor |
| title | Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna Applications |
| title_full | Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna Applications |
| title_fullStr | Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna Applications |
| title_full_unstemmed | Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna Applications |
| title_short | Designing High-Power Ultra-High-Speed Motor Using a New Multiphysics Multi-Objective Optimization Method for Mechanical Antenna Applications |
| title_sort | designing high power ultra high speed motor using a new multiphysics multi objective optimization method for mechanical antenna applications |
| topic | Multiphysics analysis multi-objective optimization permanent magnet motor six-phase motor safety margin ultra-high-speed motor |
| url | https://ieeexplore.ieee.org/document/9910169/ |
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